FAN6862L Fairchild Semiconductor, FAN6862L Datasheet - Page 5

• Manufacturer Part Number: FAN6862L
• Description: A highly integrated PWM controller, FAN6862R/L provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
V
Feedback Input Section
Current Sense Section
Oscillator Section
Electrical Characteristics
V
DD
t
DD
SOFT-START
Symbol
t
V
V
V
V
D-VDDOVP
V
V
V
V
V
V
V
V
f
I
FB-OPEN
t
V
V
I
I
I
t
t
Section
OSC-G
FB-ZDC
DD-OFF
DD-OVP
DD-OP
DD-BM
DD-OVP
FB-OLP
D-OLP
f
= 15V and T
DD-ST
DD-LH
t
STHVA
SLOPE
Z
STHFL
hop-1
hop-3
DD-OP
DD-ON
DD-LH
t
OSC
f
f
A
LEB
FB-N
FB-G
PD
DV
DT
FB
V
Delay to Output
Leading-Edge Blanking Time
Flat Threshold Voltage for Current Limit
Valley Threshold Voltage for Current Limit
Slope Compensation
Period During Startup Time
Normal PWM Frequency
Hopping Period 1
Hopping Period 3
Green Mode Minimum Frequency
FB Threshold Voltage For Frequency
Reduction
FB Voltage at f
FB Threshold Voltage for Zero Duty
Frequency Variation vs. V
Frequency Variation vs. Temperature
Deviation
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin Open Voltage
Threshold Voltage for Open-Loop Protection
Open-Loop Protection Delay Time
Continuously Operating Voltage
Turn-On Threshold Voltage
Turn-Off Voltage
V
Threshold Voltage for Latch-Off Release
Startup Current
Normal Operating Supply Current
Green-Mode Operating Supply Current
V
V
Latch-Off Holding Current
DD
DD
DD
A
= 25°C unless otherwise noted.
Over-Voltage Protection (Latch-Off)
Over-Voltage Protection
OVP Debounce Time
OSC-G
Parameter
DD
Center Frequency
Hopping Range
Hopping Range
Deviation
5
V
C
GATE Open,
V
V
Duty>51%
Duty=0%
Duty=DCY
V
V
V
V
V
V
T
Test Condition
A
DD-ON
FB
DD
FB
FB
FB
FB
FB
DD
L
=1nF
= -40 to +105°C
=V
>V
≥V
=V
≥V
=V
=5V
=11.5V to 20V
FB-N
FB-N
FB-G
FB-N
FB-G
FB-G
–0.16V
MAX
Min.
1/4.0
270
Continued on the following page…
4.3
7.5
5.0
62
15
24
24
53
3
0
0.273
Typ.
1/3.5
0.44
11.5
22.5
0.02
±4.2
±2.9
100
360
8.5
5.5
5.2
4.6
0.5
4.4
2.5
2.1
1.7
16
25
25
30
40
56
65
4
8
3
5
Max.
1/3.0
2.00
250
9.5
2.5
5.4
4.9
24
17
26
30
26
50
65
60
68
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5
4
2
Unit
kHz
V/V
kHz
mA
mA
ms
ms
ms
μA
μA
kΩ
ms
μs
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V